SUSE Expert Day Paris 2019 - Automated SAP HANA deployments et Terraform

1. Automated SAP HANA SR Deployments in
Public/Private Clouds with Terraform
Julien ADAMEK
QA Engineer
SUSE / julien.adamek@suse.com
Expert Days Paris
Juillet 2019

2. 2
Objectifs du projet
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Faciliter le deploiement d’un environnement complexe ainsi que sa rejouabilité
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Tester les images Cloud délivrées par SUSE
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Unification du code
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Collaboration avec nos développeurs
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Adresser les clouds publics et privés avec un unique projet

3. 3
Outils IaC
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Configuration management, provisioning
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Déjà intégré dans plusieurs produits
SUSE (SES, SUMA, CaaSP)
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Orchestration, push de conf, event
reaction
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Code unique pour le déploiement
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Creation d’infrastructure (construire,
modifier, versionner)
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Plugins providers (scaleway, docker,
kubernetes …)
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Idempotence

4. 4
Infrastructure cible
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1 cluster HA de 2 VMs SAP HANA SR avec scénario Performance
Optimized
●
1 VM iSCSI target qui va servir pour le STONITH Block Device (SBD)
t2.micro => 1 vCPU, 2.5 GHz, Intel Xeon Family, 1 Gio mémoire
m4.2xlarge => 8 vCPU, 2.4 GHz, Intel Xeon E5-2676v3, 32 Gio
mémoire

5. 5
1) Clone du projet ha-sap-terraform-
deployments depuis github
2) Suivre les intructions du README
concernant le provider retenu
3) Customisation des variables terraform et
Salt
4) Deploiement de l’infra avec terraform init,
plan & apply
Un script d’init est exécuté pour enregistrer
le système et installer l’agent salt
5) Terraform lance le provisioning via Salt
- Configuration des 3 serveurs
- Exécution des formulas Salt
Big Picture

6. 6
●
Création de l’infrastructure via du code
VM, disques, réseau, security group
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L’infrastructure est stockée dans un fichier json terraform.tfstate
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Renommer le fichier terraform.tfvars.example en terraform.tfvars et le
customiser
Terraform

7. 7
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Salt masterless
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Hostname, hosts, SSH, iSCSI initiator, répertoires etc…
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Credentials clouds
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Download fichiers HANA et formulas Salt
Configuration avec Salt

8. 8
Salt Formulas
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Collection de states Salt pré-écrit par d’autre users et qui contient des paramètres
génériques. Elles peuvent être installées sous forme de RPM ou de depôt GIT
●
saphanabootstrap-formula
1) Installation de SAP HANA
2) Mise en place de la réplication entre les deux noeuds
●
habootstrap-formula
Installation du cluster via l’extension HA
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Customisation des fichiers pillars

9. 9
Next
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Projet jeune
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Openstack, autres clouds
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Outils de provisioning
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HANA Scale-up Cost Optimized Scenario, Scale-Out Scenario etc…
●
Accostage avec openQA ?

10. 10
Demo
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Prérequis
- Configurer les credentials AWS
- Upload des fichiers d’installation HANA dans un bucket S3
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Clone du projet GIT
git clone https://github.com/SUSE/ha-sap-terraform-deployments.git
●
Création des clés SSH pour le cluster
cd ha-sap-terraform-deployments/
mkdir salt/hana_node/files/sshkeys
ssh-keygen -f salt/hana_node/files/sshkeys/cluster.id_rsa -q -P ""
●
Copie et customisation des pillars
cp pillar_examples/automatic/{cluster.sls,hana.sls,top.sls} salt/hana_node/files/pillar/
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Customisation terraform.tfvars
cd aws/terraform_salt/
cp ~juadk/ExpertDays/terraform.tfvars .
●
Déploiement
terraform init; terraform plan; terraform apply

11. 11
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https://github.com/SUSE/ha-sap-terraform-deployments
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https://github.com/SUSE/saphanabootstrap-formula
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https://github.com/SUSE/habootstrap-formula
Liens

13. 13
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